Saliva-ejector for use in dental treatment and the like



J A. RDNN.

SALIVA EJECTOR FOR USEIN DENTAL TREATMENT AND THE LIKE. APPLICATION manAPR. 24. 1920.

1,401, 4 Patented Dec. 27,1921;

UHTE

JENS AABERG nbN-N, or KOLDING, J'UTLAND, DENMARK, ASSIGNOR, BY DinnerAND mEsNE ASSIGNMENTS, r0 ENI'I'A a. PINCHES, or LONDON, ENGLAND.

SALIVA-EJEGTOR FOR USE IN DENTAL TREATMENT AND THE LIKE.

Application filed April 24, 1920. Serial No. 376,426.

To all whom it may concern:

Be it known that I, JENs AABERG RGNN, a subject of the King of Denmark,and residing at Kolding, Jutland, Denmark, have invented a certain newand useful Saliva- Ejector for Use in Dental Treatment and the like, ofwhich the following is a specification.

This invention relates to saliva ejectors used in dental treatment andthe like, especially in the lower jaw, and its object is to insure aneffective drying of the teeth and gums, which is impossible with thesimple saliva absorbers generally used. The invention has particularrelation to saliva ejectors that are provided with two perforatedtubular portions one of which acts on the lingual and the other on themalar and labial side of the gums whereby the saliva secreted both fromthe lingual salivary glands and from the parotid gland and otheradjacent parts can be removed.

An important feature of the present invention consists in the provisionof resilient means for maintaining the apparatus in place in the mouth.

A further important feature consists in forming the perforated tubes sothat they extend from points respectively on the exterior and interiorside of the left or right first molar or adjacent thereto to points onthe exterior and interior side of the right or left eye tooth or inproximity thereto.

The accompanying drawing shows a perspective view of one form ofconstruction by way of example, the apparatus being shown in operativerelation with the jaws. The form of ejector shown is intended for dryingthe left half of the lower jaw. In treating the right half of the lowerlaw an apparatus may be used having a form which is symmetrical to thatshown.

The ejector consists of two bent, perforated tubes 1 and 2, which reachfrom points respectively on the exterior side and the interior side ofthe left first molar 10, or adjacent thereto, to points on theexteriorand interior side of the right eye-tooth 11, or in proximitythereto. At this point the tube 2 is prolonged as at 3, which runs in acurve up over the lower lip to form a siphon, and

the tube 1 has a similar extension 4 which curves up over the frontteeth and the 11p. The two extensions 3 and lmay be united as shown at 5and be connected with a common suction tube 6 of rubber or the like. Bypins, screws or similar fast or detachable connecting means, the rearends of the tubes 1 and 2 are connected with suitable springs 7 and 8,for example helical springs which are coupled together by a member 9which, when the springs are bent in the manner shown, can lie in contactwith the upper jaw, thus holding the rear portions of the tubes 1 and 2in place under pressure. The front Specification of Letters Patent.Patented Dec. 27, 1921. v

part of the ejector is kept in place by means of the weight of thesuction tube.

It is not necessary to construct the apparatus to a special leftandright form. In many cases the apparatus will work satisfactorily if itconsists only of the double siphon 3, 4; without the horizontal tube 1,2. In connection with the double siphon 3, 4, or the like, there may beused horizontal suction tubes extending equally to the right and leftand eventually extending along the jaw throughout its entire length. Inconnection with the interior tube 2 there may be disposed a plate-shapedmember 12 to press the tongue down and away from the row of teeth undertreatment. The shown details are not essential to the invention and canbe modified in many different ways.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is 1. A saliva ejector comprising a perforatedlingual tube, a perforated combined malar and labial tube, siphonsconnecting said tubes to a common discharge tube, and resilient meansfor retaining the rear portions of said tubes in position in the mouth.

2. A saliva ejector comprising a perforated lingual tube, a perforatedcombined malar and labial tube, said tubes reaching from the first molarto the opposite eyetooth, siphon connecting said tubes to a commondischarge tube, resilient means for retaining the rear portions of saidtubes in position in the mouth and a tongue depressor mounted on saidlingual tube.

3. A saliva ejector comprising a perforated lingual tube, a perforatedcombined malar and labial tube, siphon connecting said tubes to a commondischarge tube, coiled springs connected at one end to said 5 tubes anda coupling piece connecting the other ends of said springs, said springsand coupling piece being adapted to cooperate With the upper jaw to holdthe rear portions of said. perforated tubes in position in the mouth.

In testimony whereof I have signed my name to this specification.

JE-NS

